first commit

core/Square.cpp

@@ -0,0 +1,52 @@
+#include "Square.h"
+
+Square::Square(
+        const Vector2& position,
+        const Size& size
+)
+        : m_Position(position),
+          m_Size(size)
+{
+
+}
+
+bool Square::hit(
+        const Vector2& point
+) const
+{
+    return
+            point.x() >= top_left().x() &&
+            point.x() <= bottom_right().x() &&
+            point.y() >= top_left().y() &&
+            point.y() <= bottom_right().y();
+}
+
+Vector2 Square::top_left() const
+{
+    return m_Position;
+}
+
+Vector2 Square::bottom_right() const
+{
+    return Vector2(
+            m_Position.x() + m_Size.width() - 1,
+            m_Position.y() + m_Size.height() - 1
+    );
+}
+
+bool Square::collide(
+        const Square& other
+) const
+{
+    bool xProjectionCollide =
+            top_left().x() <= other.bottom_right().x() &&
+            bottom_right().x() >= other.top_left().x();
+
+    bool yProjectionCollide =
+            top_left().y() <= other.bottom_right().y() &&
+            bottom_right().y() >= other.top_left().y();
+
+    return
+            xProjectionCollide &&
+            yProjectionCollide;
+}